BJP understands Mattsson was detained today under Section 43 of the Terrorism Act 2000 in Central London, near Buckingham Palace, after taking photos of cadets. Mattsson had received approval from the cadets' supervisors as he was shooting images for the cadets' website, BJP has been told.
BJP also understands that the photographer was searched and his details recorded.
The incident comes less than two weeks after the same photographer was stopped and detained by police officers claiming he represented a terrorism risk. Mattsson, at the time, recorded his conversations with police officers. For more details and to listen to the recording, read our full report here.
Mattsson is currently unavailable for comment. The Metropolitan Police was also unable to comment as it has yet to receive an account of the incident.
Section 43 of the Terrorism Act 2000 requires reasonable suspicion that a person is a terrorist. Its usage is more limited than Section 44, which doesn't require suspicion. However, the European Court of Human Rights recently found Section 44 to be illegal.
The act's Section 43 reads: "A constable may stop and search a person whom he reasonably suspects to be a terrorist to discover whether he has in his possession anything which may constitute evidence that he is a terrorist."
The stop was confirmed by photojournalist Marc Vallée, whom Mattsson called, according to a Twitter post. Vallée wrote: Just had a phone call from @julesmattsson He has just been stopped & searched under Section 43. Yes 43!"
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